230 results about "Suturing needle" patented technology

The utility model discloses a stitching instrument for stitching an endoscope puncture hole. The stitching instrument comprises a handle part and two operating rods which are assembled on the handle part in a rotatable structure, the lower ends of the two operating rods are respectively provided with a convex needle connecting part, and the lower ends of the two operating rods extend out of the guide cylinder of the handle part; in the rotating action of the two operating rods, the needle connecting parts at the lower ends of the two operating rods are folded or unfolded; when the needle connecting parts of the two operating rods are in a folded state, the guide cylinder located at the handle part is in an axial storage coverage range of a trocar channel through which the guide cylinder needs to penetrate during surgical operation; the lower end of each operating rod is provided with a needle mounting base formed in an outward protruding mode, the needle mounting bases are connected with suture needles through detachable structures, and the suture needles are connected to the needle mounting bases in place to form an inflection assembly structure facing the handle part. According to the stitching instrument, the stitching operation is simplified, the stitching safety, flexibility and efficiency are improved, the forming structure of the stitching instrument is simplified, and the practicability is higher.

The application provides a suturing mechanism and a biological tissue closure device, the suturing mechanism comprising a base, a needle holder, a suturing needle, a first driving assembly and a second driving assembly; the needle holder is rotationally connected with the base, the first driving assembly is connected with the needle holder and can drive the needle holder to rotate relative to the base to an open state or a closed state; the side of the needle holder away from the base has a boss, the inner contour of the boss matches the outer contour of the suturing needle, and is used for providing a motion track for the suturing needle; at least a part of the second driving assembly can abut against the suturing needle and can self-rotate relative to the axial direction of itself, so as to drive the suturing needle to move along the motion track. The application can realize the closure of various sizes of objects to be closed (for example, a blood vessel wound), and can realize multiple needle penetrating actions through one intervention, so that a better closure effect can be achieved.

A composite suture needle configured for passing through a smaller cannula used in minimally invasive surgery includes a curved elongated body made of stainless steel. The curved elongated body has a proximal end and a distal end with a pointed tip. The composite suture needle includes a sheath covering the curved elongated body. The sheath is curved so as to conform to the shape of the curved elongated body. The sheath is made of a more flexible material than the curved elongated body. The pointed tip of the curved elongated body extends distally beyond a distal end of the sheath. The curved elongated body is made of stainless steel and the sheath is made of a more flexible material such as nitinol than the elongated body.

The present disclosure relates generally to devices and methods for treating a tissue defect, for example, by suturing. In some embodiments, a suturing device may include an elongate member having a working channel, a suture channel, and a suture arm extending from the elongate member. The suturing device may further include a needle passer located within the working channel, the needle passer operable to deliver a needle between the elongate member and a distal end of the suture arm for suturing a target tissue, and a suture extending through the suture channel, wherein the suture is coupled to the needle. The suturing device may further include a plurality of imaging devices, wherein a first imaging device is positioned along a distal face of the elongate member, and wherein a second imaging device is positioned along the suture arm.

The utility model relates to a temporal muscle suturing and fixing device for neurosurgery, which is characterized in that at least one suturing line is connected onto a screw, and the other end of each suturing line is connected with a suturing needle. The device has the beneficial effects that the screw is directly fixed on the skull; the needle holder is provided with a suture needle to suture temporalis, and the suture needle is removed; the thread on one side of the screw and the thread on the other side of the temporalis can be knotted, fixation after the temporalis is cut open in a neurosurgery operation can be effectively completed, poor fixation of the temporalis is avoided, temporalis atrophy of a patient after an operation is avoided, psychological stress brought to the patient due to unattractive appearance caused by amyotrophy on one side after the operation is avoided, the design is simple and practical, and practicability is high. The device can be popularized to be used in various intracranial operations.

The invention provides a visual assistance method for a suture needle body, electronic equipment and a storage medium, and is applied to the technical field of image processing. The method comprises the following steps: acquiring depth information of a suture needle body action area in a current frame image, and acquiring a binary mask of a suture needle body in the current frame image; constructing a complete suture needle body three-dimensional track based on needle body geometric prior constraints and binary masks, and obtaining a complemented three-dimensional tubular needle body model; for a second pixel point on the three-dimensional tubular needle body model, according to the three-dimensional depth of the second pixel point under the camera coordinate system and the three-dimensional depth of the first pixel point corresponding to the second pixel point, determining a position shielding relationship between the second pixel point and the action area of the suture needle body; based on the position shielding relation and the three-dimensional tubular needle body model, providing visual assistance corresponding to the suture needle body. The visual auxiliary device is used for improving the visual auxiliary effect facing the suture needle body, and then the precision and reliability of surgical operation are improved.

The application provides a suture device, a treatment device with the suture device and a treatment equipment. The suture device comprises a main housing, a suture needle, a needle feeding assembly and a needle preventing assembly. The suture needle is slidably arranged in the main housing. One end of the suture needle is connected with a suture thread, and the other end of the suture needle is a pointed end. The needle feeding assembly is arranged in the main housing and comprises a driving member, a reset member and a needle feeding tooth. The needle feeding tooth is in a separable engagement with the suture needle. The driving member acts on the needle feeding tooth and the suture needle in the engagement state, controls the suture needle to advance and causes the reset member to deform. When the driving member is released, the engagement between the needle feeding tooth and the suture needle is released, and the reset member drives the needle feeding tooth to reset. Alternatively, the driving member acts on the needle feeding tooth relative to the suture needle in the engagement release state and causes the reset member to deform. When the driving member is released, the needle feeding tooth is engaged with the suture needle, and the reset member drives the needle feeding tooth and the suture needle to advance. The needle preventing assembly is arranged in the main housing and prevents the suture needle from retreating.

A laparoscopic suturing device is provided. The suturing device can pass a suturing needle back and forth between jaws of a jaw assembly to suture tissue at a surgical site in a minimally invasive procedure. The jaw assembly can have a pivotable jaw member in each jaw to position the jaw assembly and needle in a low-profile stowed configuration for insertion through a low diameter surgical port. The jaw assembly can be actuated by a handle assembly that provides simultaneous needle passing from a driving jaw to a receiving jaw and latching the needle within the receiving jaw in a single trigger cycle.20 24 22 73 26 15 O ct 2 02 4 A B S T R A C T O F T H E D I S C L O S U R E 2 0 2 4 2 2 7 3 2 6 1 5 O c t 2 0 2 4

The temporomandibular joint disc suture needle with the holding structure comprises a needle tube main body, and the two ends of the needle tube main body are a puncture end and a propelling end respectively. The holding mechanism is used for forming a transverse holding type holding structure, the propelling mechanism is used for suturing the joint disc, the puncturing mechanism is used for puncturing and anchoring the joint disc, the holding mechanism is arranged on the side portion of the needle tube body, and the propelling mechanism is assembled at the propelling end of the needle tube body. The needle tube has the advantages that the holding mechanism is arranged, the holding mechanism and the needle tube body jointly form a T-shaped transverse holding type holding structure, an operator can hold the needle tube conveniently, the situation that the operator exerts force difficultly during suturing is avoided, and it is guaranteed that fine suturing operation is carried out smoothly; the propelling mechanism is arranged to be matched with the puncture mechanism, the anchoring part can be stably pushed to the designated position of the temporomandibular joint disc, anchoring of the suture line can be achieved through one-time pushing, and operation is easy.

The invention discloses an abdominal cavity puncture stitching instrument, and belongs to the technical field of abdominal cavity puncture stitching equipment, the abdominal cavity puncture stitching instrument comprises a puncture needle head, a needle cylinder, a liquid taking tube, a stitching angle adjusting device, a stitching needle telescopic structure and a liquid extraction structure locking device, the puncture needle head is inserted into an abdominal cavity, the needle cylinder is connected with the puncture needle head in a clamping manner, and the liquid taking tube is fixedly mounted in the needle cylinder; the liquid extraction structure locking device is connected with the puncture needle head in a clamped mode, the liquid extraction structure locking device slides in the needle cylinder in a clamped mode, the suture angle adjusting device is clamped and hidden on the side wall of the needle cylinder, and the suture needle telescopic structure is installed in the suture angle adjusting device in a clamped mode. In order to solve the problems that the operation is still complicated and the suturing angle is relatively fixed when a current puncture mode and a current seroperitoneum drawing mode are switched, the invention provides the abdominal cavity puncture suturing instrument, the problems that the suturing angle cannot be adjusted and the puncture mode and the seroperitoneum drawing mode are inconvenient to switch are effectively solved, and the operation flexibility and the integration level of the whole equipment are improved.

A kind of suturing mechanism and surgical robot, the suturing mechanism includes rotatable suture assembly, thread adjusting assembly and suture needle, rotatable suture assembly is controlled to rotate, rotatable suture assembly includes first needle slot, drive slot, drive unit and first drive rope;First needle slot is configured to accommodate suture needle, drive slot is correspondingly arranged with first needle slot, drive unit is slidably arranged in drive slot, configured to drive suture needle, first drive rope is connected with drive unit, and along drive slot is arranged, configured to control drive unit to slide in drive slot, thread adjusting assembly is connected with the first drive rope, configured to: in the case where rotatable suture assembly is controlled to rotate, first drive rope is in tension state.This suturing mechanism can realize more stable, accurate drive operation.

The utility model discloses a pediatric surgery suture needle management auxiliary device which comprises a box body, a plurality of containing grooves are vertically formed in the top of the box body, a push-out assembly is arranged in each containing groove, a limiting assembly is arranged on a lifting body, and the pediatric surgery suture needle management auxiliary device is provided with a rectangular hole, a round rod, a rubber ball body and a needle inserting hole. When the operation suture needles in the needle inserting holes in the lifting body need to be taken, the rubber ball body is pushed to drive the round rod to move upwards, the round rod drives the lifting body to move upwards in the containing groove, at the moment, the operation suture needles inserted into the lifting body are in a row, and at the moment, the operation suture needles can be conveniently and rapidly taken out of the needle inserting holes; and the situation that the surgical suture needles are gathered together and cannot be quickly taken is prevented.

The utility model provides a portable needlework box, and belongs to the technical field of medical instruments. The portable sewing box comprises a supporting assembly and a box body. The supporting assembly comprises a bottom plate, a supporting frame and knob bolts, the supporting frame is fixedly connected to the upper surface of the bottom plate, the multiple knob bolts are arranged, in the using process, a medical worker can carry the supporting frame and the multiple box bodies together, when the box bodies need to be used, the knob bolts can be detached, and therefore the medical worker can conveniently carry the box bodies. The box bodies can be moved forwards or backwards, then the suture line bags and the suture needle bags can be stored and taken, the two box bodies move in different directions, the two box bodies can be staggered, two persons can conveniently store and take the suture line bags and the suture needle bags at the same time, the multiple box bodies can store a large number of suture line bags and suture needle bags at the same time, and the box bodies are convenient to use. And a plurality of box bodies can be carried together, so that the portability is higher, and the practicability is higher.

A suturing apparatus may include a shaft member having a lumen, and a first jaw member and a second jaw member that move between an open configuration and a closed configuration. A distal portion of the first jaw member may be pivotably connected to a distal portion of the second jaw member, and the distal portion of the second jaw member may have a distal opening. The suturing apparatus may further include a needle translates through the lumen of the shaft member and carries a suture, and a retention member in the distal opening of the second jaw member to remove the suture from the needle. The suture may be wrapped around the distal portion of the second jaw member. The suturing apparatus may be included in a suturing system having a suture. The suturing apparatus may be used in a method of repairing tissue.

This invention discloses a suture device, comprising a main shaft and several suture components. Each suture component includes a suture thread with suture needles at both ends. The main shaft has suture limiting members connected to both ends, each capable of sliding along the main shaft. The ends of two suture limiting members that are far apart from each other extend beyond the main shaft. Several guide channels for accommodating suture needles are arranged around the outer periphery of each suture limiting member. When the tip of the suture needle is engaged with a suture limiting member below a guide channel, the suture limiting member is restricted from moving. When the suture needle is pulled away from the outer end of the corresponding suture limiting member, the needle tip slides out of the suture limiting member. When the suture needle is pushed towards the outer end of the corresponding suture limiting member, the needle tip is pushed to the outlet of the guide channel. This invention has a simple structure and is more convenient for suturing tubular tissues.

The utility model relates to the technical field of medical instruments, and discloses a clamping device which is used for clamping a suture needle, the clamping device comprises a clamping body, a magnetic unit, a power supply unit and a control unit, the power supply unit is arranged in the clamping body, so that a wire connected with an external power supply in related technologies does not need to be arranged outside the clamping device, and the clamping device is convenient to use. The situation that the wound of a patient is worsened to be inflamed due to the fact that the wire makes contact with the patient is avoided, and therefore the technical effects that the safety of the clamping device in the using process is improved, and meanwhile the structural conciseness of the clamping device can be improved are achieved.

The present invention relates to a suturing device comprising: a forward-backward movement guide tube to which second and first loops of a preliminary knot part of a suture knot part are sequentially added and installed, and into the rear of which a forward-backward penetration tube part is inserted; a forward-backward tying-guide bracket part onto which the second loop is added and installed; and a suturing needle part which has an end part that extends from the second loop provided therein and which is installed above the forward-backward penetration tube and the forward-backward movement guide tube. The suturing device has a simple configuration, minimizing the manufacturing costs thereof, and the simple configuration has mutual organic operation enabling a suture knot part having a two-stage tying part to be quickly and easily formed in a wound incision part, thereby quickly and easily suturing the wound incision part to reduce the pain of the suturing procedure for a patient. In addition, the suturing device enables easy suturing, including not only surgical suturing of an open portion of a body part during surgery, but also suturing after direct removal or ablation of lesions using an endoscope without opening the inside of the body.

The present technology is generally directed to tissue-pexy systems including a probe and a suture thrower removably coupleable to the probe. The probe can be partially inserted into a body cavity of a patient. The suture thrower can have a tissue-receiving portion and a needle. The tissue-receiving portion can include a first concave surface defining a first recess for receiving a first tissue portion and a second concave surface defining a second recess for receiving a second tissue portion. The needle can be movable between a retracted state and an extended state. The needle can be configured to pierce through the first and second tissue portions when moving from the retracted state to the extended state. Also, the needle can be configured to pull a suture device through the first and second tissue portions when moving from the extended state to the retracted state.

The utility model discloses a surgical suture needle storage box with high sealing performance, which comprises a storage box main body, a plurality of auxiliary mechanisms are hinged to the upper end of the storage box main body, a sealing mechanism is fixedly arranged in the middle of the interior of the storage box main body, and a silica gel pad is fixedly arranged at the lower end of the interior of the storage box main body. A plurality of needle grooves are fixedly formed in the upper end of the silica gel pad. According to the storage box, through the design of the auxiliary mechanism, the auxiliary mechanism is connected through magnetic attraction of the first magnetic attraction block and the second magnetic attraction block, the lifting cover can be tightly attached when the needle taking opening is closed, dust and impurities are prevented from entering the lifting cover, meanwhile, the sealing performance of the needle taking opening is further enhanced through the first sealing ring, and the needle taking opening is prevented from being damaged. Due to the design of the needle taking opening, the needed suture needle can be conveniently taken out in the operation process, the box cover does not need to be completely opened, the time that the suture needle is exposed in the external environment is shortened, and the sealing mechanism is matched with a sealing protruding block through a sealing groove formed in the sealing mechanism.

The utility model relates to the technical field of medical instruments, in particular to an oral cavity suture needle convenient to operate, which comprises a needle body part, a clamping part and a threading part which are connected in sequence, the section of the clamping part is of a square-round structure, a threading hole is formed in the threading part, a guide-in notch is formed in the threading part, and the guide-in notch is communicated with the clamping part. A thread inlet slit communicated with the side end of the threading hole is formed in the inner end of the guide-in notch, anti-falling protrusions are symmetrically arranged on the inner walls of the two sides of the end, away from the needle body part, of the threading hole, and the ends of the two anti-falling protrusions are attached to each other; the oral cavity suture needle disclosed by the utility model is novel in structure, small and exquisite, and convenient to thread and lock, has the advantage of being convenient to operate when being used for suturing an oral cavity wound, and can be quickly and stably clamped by tweezers when being operated in a narrow gap in an oral cavity by utilizing a square and round structure and a magnetic attraction design; the oral cavity suture operation is more convenient, and the use effect is very excellent.

The utility model provides a suture needle packaging box convenient to disassemble, and belongs to the technical field of medical instruments. The suture needle packaging box convenient to disassemble comprises an external protection part and an internal storage part. The external protection part comprises a box body and a box cover, the box cover is hinged to the box body, the box cover and the box body are fixed through a lock catch part, and a gasket layer is arranged on the inner side of the box cover. The internal storage part comprises a flexible pedestal, the flexible pedestal is fixed in the box body, the top of the flexible pedestal is provided with a placing groove for embedding and placing a suture needle body, and the bottom of the flexible pedestal is provided with a hollow cavity. The box cover at the top of the box body is opened through rotation, and the inner side edge of the top of the flexible pedestal is pressed inwards. At the moment, the hollow cavity in the bottom of the flexible pedestal is compressed, so that the space in the placing groove in the top of the flexible pedestal is enlarged, and the suture needle body placed in the flexible pedestal can be conveniently taken out. After an operation, the suture needle body is correspondingly clamped into the containing groove, and rapid containing of the suture needle body is completed.

The invention discloses a surgical suture needle with a suture for annular cervix suture, and relates to the technical field of medical instrument research, the surgical suture needle comprises a needle body, a needle head arranged at the front end of the needle body, a connecting mechanism movably mounted at the rear end of the needle body and a connecting suture line connected to the connecting mechanism, and a threaded opening is formed in the rear end of the needle body; the connecting mechanism comprises a connecting assembly and a threaded column fixed to the upper end of the connecting assembly, the threaded column is installed in the threaded opening in a threaded connection mode, the connecting assembly is attached to the rear end of the needle body, and one end of the connecting suture line is limited in the connecting assembly; according to the device, the needle body and the connecting mechanism are in detachable threaded connection, and the connecting suture line is indirectly connected to the needle body through the connecting mechanism, so that the connecting suture line can be indirectly connected to suture needles with different lengths, and an operator can select the suture needle with the corresponding length to perform an operation according to the condition in the operation; operation efficiency is improved, and operation risks are reduced.

The utility model discloses a suture needle fixing mechanism and zipper equipment, and relates to the technical field of zipper equipment. The needle chuck assembly is arranged at the bottom of the fixed base, a first positioning hole and a second positioning hole are formed in the needle chuck assembly, a first suture needle is installed in the first positioning hole, and a second suture needle is installed in the second positioning hole; the first fixing block is slidably connected with the first positioning hole to fix the first suture needle; the second fixing block is slidably connected with the second positioning hole to fix the second suture needle. According to the suture needle fixing mechanism, the technical problem that the relative positions of two sets of suture needles in an existing suture needle fixing mechanism cannot be completely consistent, so that the distances of zipper suture lines produced by different suture machines are not uniform, and the overall quality of products is affected is solved; the zipper stitching distances produced by different stitching machines are kept uniform, and the overall quality of products is effectively improved.

The invention discloses a needle holder for tympanic membrane repair, and relates to the technical field of medical instruments, the needle holder comprises a clamping unit, the clamping unit comprises a first clamping plate and a second clamping plate, the upper surface of the first clamping plate is provided with rounded sawteeth, the lower surface of the second clamping plate is provided with matched sawteeth, the matched sawteeth and the rounded sawteeth are engaged with each other, and the matched sawteeth are matched with the rounded sawteeth; the second clamping plate is used for clamping a suture needle, and a front gear is fixedly arranged at the tail of the second clamping plate; a rack-gear transmission structure is adopted to replace traditional lever transmission, torque is stable in the transmission process and does not change along with angle changes, a doctor exerts force evenly during operation, the clamping force can be accurately controlled, the situation that a suture needle slides off or tympanic membrane tissue is damaged is avoided, and the operation efficiency is improved. According to rack-gear transmission, only one slender rod is needed to be matched with the movable block, the rack and the gear, a cross hinged lever structure is not needed, the occupied space is greatly reduced, the outer diameter of the slender rod can be made to be thinner, and the slender rod can smoothly stretch into the deep position of a narrow ear canal.

The utility model discloses a blood vessel stitching instrument which comprises an operation assembly, a first stitching needle and an anchoring assembly, and the operation assembly is connected to the first stitching needle to drive the first stitching needle to advance or retreat. The anchoring assembly comprises a first supporting piece and a guiding piece arranged on the first supporting piece, and the first supporting piece is arranged on the side, close to the far end, of the first suture needle; the first supporting piece is connected with the operation assembly so as to be driven by the operation assembly to be unfolded and folded. The first supporting piece is provided with a first groove, the two opposite sides of the first groove are provided with a suture needle inlet and outlet and a limiting part, and the guiding piece comprises a first needle sleeve arranged in the first groove, so that in the process that the first needle sleeve is combined with the advancing first suture needle, the limiting part can limit the first needle sleeve, and the first suture needle can be separated from the first needle sleeve. The connection difficulty of the first needle sleeve and the first suture needle is reduced, and the connection reliability of the first needle sleeve and the first suture needle is improved.

The application discloses a round piece type surgical suture needle recycling and counting device, and relates to the technical field of operating room nursing auxiliary supplies.The device comprises a round piece body, and the upper surface of the round piece body is provided with a pressing guide area.The elastic fixing layer automatically clamps the suture needle through the pressing guide area, and one-handed operation is simple and convenient.The suture needle tip is pressed down to push the arc-shaped color plate to slide out through the pressing and rotating structure in the color development prompt assembly, and the use state is clearly displayed.The state check can be completed by scanning after or during the operation, the problem that the counting of the sharp instrument box is not intuitive is effectively solved, the device is suitable for metal and non-magnetic suture needles, the elastic fixing layer can adapt to suture needles of different specifications, the material limitation of the magnetic plate is avoided, each round piece is provided with an independent number, and the round pieces can be connected into a group through a buckle assembly.Nurses can quickly count the number of suture needles according to the number of the used round piece and the state of the color plate, and it is not necessary to pull out the suture needles one by one.The overall structure is small and compact, the device is low in cost as disposable sterile consumables, and is convenient to use.

The application discloses a laparoscope needle holder with a thread feeding structure, which comprises a clamping rod, the head of the clamping rod is hinged with a clamping head, the clamping head comprises a shell, a first clamping plate, a second clamping plate, a transmission mechanism and a driving wheel, and a pair of driven rotating rods are installed on the second clamping plate. The transmission mechanism, the driven rotating rods and the driving wheel are arranged, so that after the suture needle is clamped, the second pull rope drives the driving wheel to rotate, the driving rotating rod is driven to rotate under the action of the transmission mechanism, and the suture needle is delivered, the suture needle does not need to be repeatedly pulled by the clamping head for suture work on the sutured surface, the knotting of the suture thread when the suture needle is continuously driven to move is prevented, the action of the clamping head in the patient's body is small, and the suture needle is prevented from scratching the tissue in the patient's body when the suture needle is clamped to move.

The utility model discloses a disposable non-absorbable medical suture line, which belongs to the technical field of medical suture lines, and comprises a spring fastener hung at the tail end of a suture needle, one end of the spring fastener is fixedly connected with a sleeve, a groove is arranged at the front end of the sleeve close to the top, and the other end of the sleeve is fixedly connected with the spring fastener. The other end of the spring buckle is hung in the rectangular groove in the tail portion of the suture needle through the medical forceps clip, the tedious process that medical staff penetrate through a needle hole in the operation process can be omitted, operation is more convenient and faster, and therefore the operation efficiency is further improved; meanwhile, the arc-shaped spring buckle is clamped in the groove, the position of the arc-shaped spring buckle can be further limited, and therefore the spring buckle is prevented from falling off from the tail of the suture needle during surgical suture, and the actual action effect is further improved.

A surgical suturing device is disclosed. The surgical suturing device may include a first or a second tissue gap, a first pair of needles configured to be movable across the first tissue gap, a second pair of needles configured to be movable across the second tissue gap, and a first suture having first and second ends. The surgical suturing device also includes a second suture having first and second ends and a needle actuator which selectively engages either: the first pair of needles to drive them through the first tissue gap and into communication with the first end of the first suture and the first end of the second suture, respectively; or the second pair of needles to drive them through the second tissue gap and into communication with the second end of the first suture and the second end of the second suture.

A suturing mechanism and a surgical robot, the suturing mechanism comprising a suturing needle and a suturing assembly, the suturing assembly comprising a needle track and a suturing needle driving mechanism. The needle track allows the suturing needle to pass through, and the suturing needle driving mechanism drives the suturing needle to move in the needle track; the suturing assembly comprises a first suturing assembly and a second suturing assembly which are spaced apart and opposite to each other, so that the first needle track of the first suturing assembly and the second needle track of the second suturing assembly are spaced apart and opposite to each other to form a suturing track; the first suturing needle driving mechanism of the first suturing assembly and the second suturing needle driving mechanism of the second suturing assembly drive the suturing needle to move in the suturing track alternately; one of the first needle track and the second needle track is in a minor arc shape, and the other is in an arc shape. The suturing mechanism enables the suturing needle to be guided and constrained on both sides of the tissue to be punctured, so that the motion track of the suturing needle can be kept stable, thereby improving the puncture effect.